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Goal 3.05c: Evidence of Evolution

Goal 3.05c: Evidence of Evolution. Roots: m orph = shape o logy = study of Ana = without Homo = same. antidarwinism.com. Human footprints from early man found at Laetoli by Dr. Mary Leakey. Fossils = preserved remains of an organism that lived many years ago. FOSSIL EVIDENCE.

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Goal 3.05c: Evidence of Evolution

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  1. Goal 3.05c: Evidence of Evolution Roots: morph = shape ology = study of Ana = without Homo = same antidarwinism.com Human footprints from early man found at Laetoliby Dr. Mary Leakey.

  2. Fossils= preserved remains of an organism that lived many years ago. FOSSIL EVIDENCE lboeckl.net www.greenriverstone.com IDA: Revealing the Link http://www.revealingthelink.com/more-about-ida/the-film lovingthebigisland.wordpress.com www.fossilmuseum.net ngphotooftheday.blogspot.com images.icnetwork.co.uk graphics8.nytimes.com

  3. Comparative Morphology = study of the forms/shapes of organisms. HOMOLOGOUS Structures = same shape but different functions.

  4. Comparative Morphology = study of the forms/shapes of organisms. ANALOGOUS Structures = different shape but used for same thing.

  5. Convergent evolution = evolution of similar solutions to similar problems without being evolutionarily connect. Flight evolved 3 separate times— evolving similar solutions to similar “problems” • 3 groups with wings • Does this mean they have a recent common ancestor?

  6. Convergent evolution led to mimicry (harmless organisms having similar appearance to a harmful organism) • Why do these pairs look so similar? Monarch male poisonous Viceroy male edible Which is the moth vs. the bee? Which is the fly vs. the bee? fly bee moth bee

  7. Vestigial organs = organs that are still present but are no longer useful. • Hind leg bones on whale fossils Why would whales have pelvis & leg bones if they were always sea creatures?

  8. Comparative embryology = 1 2 3 4 5 6 7 8 • Development of embryo tells an evolutionary story • similar structures during development Human Fish Calf Salamander Hog Tortoise Rabbit chicken • Development of embryo tells an evolutionary story

  9. Dog Human Macaque Bird Frog Lamprey 8 32 45 125 67 0 10 20 30 40 50 60 70 80 90 100 110 120 Molecular record • Comparing DNA & protein structure • everyone uses the same genetic code! • DNA • compare common genes • compare common proteins number of amino acids different from human hemoglobin

  10. DNA Fingerprints and Evolution The closer the match for DNA fingerprints, the closer the evolutionary relationship of the two organisms. 1 2 3 4 Who is more closely related to #1? Evidence of Evolution http://player.discoveryeducation.com/index.cfm?guidAssetId=AE274F5F-0937-430A-8762-D4BB56C72CBC&blnFromSearch=1&productcode=US

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